The First Data on Harpacticoid Copepod Diversity of the Deep-Water Zone of Lake Baikal (Siberia, Russia)
Lake Baikal (LB) is the only freshwater ancient lake on Earth where animals inhabit all bathymetric zones down to the deepest sites (approximately 1640 m). However, there is very little data on the composition of their abyssal harpacticoid fauna. On the basis of the samples collected in LB in 2010–2...
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MDPI AG
2023-01-01
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| author | Elena B. Fefilova Tatyana Y. Sitnikova Aleksandr A. Novikov |
| author_facet | Elena B. Fefilova Tatyana Y. Sitnikova Aleksandr A. Novikov |
| author_sort | Elena B. Fefilova |
| collection | DOAJ |
| description | Lake Baikal (LB) is the only freshwater ancient lake on Earth where animals inhabit all bathymetric zones down to the deepest sites (approximately 1640 m). However, there is very little data on the composition of their abyssal harpacticoid fauna. On the basis of the samples collected in LB in 2010–2017 at a depth of 270–1632 m, analysis of the fauna composition and species diversity of harpacticoids in the deep-water zone is presented. Studies were conducted in all parts of the lake, including areas of a hydrothermal, oil–methane seeps, and mud volcanoes. Nineteen Baikal endemic morphological species of the genera <i>Bryocamptus</i>, <i>Attheyella</i>, and <i>Moraria</i> (<i>Baikalomoraria</i>) were found. A brief description of the taxa morphology is presented. The genus <i>Bryocamptus</i> was the richest by species number at the studied sites, and <i>Bryocamptus smirnovi</i> Borutzky was the most frequent. The most diverse (8 species) was the fauna of the Saint Petersburg methane seep. Studies have shown that the taxonomic diversity of harpacticoid copepods in the deep-water zone of LB is lower than in its littoral zone. According to two non-parametric species estimators (Chao 2 and Jackknife 1), a 1.5-fold increase of species richness of harpacticoids of the LB abyssal is expected. |
| first_indexed | 2024-03-09T13:00:55Z |
| format | Article |
| id | doaj.art-94561b8a014d47e9abfd4d33597e0874 |
| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-09T13:00:55Z |
| publishDate | 2023-01-01 |
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| series | Diversity |
| spelling | doaj.art-94561b8a014d47e9abfd4d33597e08742023-11-30T21:54:31ZengMDPI AGDiversity1424-28182023-01-011519410.3390/d15010094The First Data on Harpacticoid Copepod Diversity of the Deep-Water Zone of Lake Baikal (Siberia, Russia)Elena B. Fefilova0Tatyana Y. Sitnikova1Aleksandr A. Novikov2Institute of Biology, Komi Scientific Centre, Ural Branch of the Russian Academy of Sciences, 28 Kommunisticheskaya St., 167982 Syktyvkar, RussiaLimnological Institute, Siberian Branch of the Russian Academy of Sciences, 3 Ulan-Batorskaya St., 664033 Irkutsk, RussiaDepartment of Zoology, Kazan Federal University, 18 Kremlyovskaya, 420008 Kazan, RussiaLake Baikal (LB) is the only freshwater ancient lake on Earth where animals inhabit all bathymetric zones down to the deepest sites (approximately 1640 m). However, there is very little data on the composition of their abyssal harpacticoid fauna. On the basis of the samples collected in LB in 2010–2017 at a depth of 270–1632 m, analysis of the fauna composition and species diversity of harpacticoids in the deep-water zone is presented. Studies were conducted in all parts of the lake, including areas of a hydrothermal, oil–methane seeps, and mud volcanoes. Nineteen Baikal endemic morphological species of the genera <i>Bryocamptus</i>, <i>Attheyella</i>, and <i>Moraria</i> (<i>Baikalomoraria</i>) were found. A brief description of the taxa morphology is presented. The genus <i>Bryocamptus</i> was the richest by species number at the studied sites, and <i>Bryocamptus smirnovi</i> Borutzky was the most frequent. The most diverse (8 species) was the fauna of the Saint Petersburg methane seep. Studies have shown that the taxonomic diversity of harpacticoid copepods in the deep-water zone of LB is lower than in its littoral zone. According to two non-parametric species estimators (Chao 2 and Jackknife 1), a 1.5-fold increase of species richness of harpacticoids of the LB abyssal is expected.https://www.mdpi.com/1424-2818/15/1/94harpacticoidsLake Baikal endemicsmorphological speciespredicted species richness<i>Bryocamptus</i><i>Baikalomoraria</i> |
| spellingShingle | Elena B. Fefilova Tatyana Y. Sitnikova Aleksandr A. Novikov The First Data on Harpacticoid Copepod Diversity of the Deep-Water Zone of Lake Baikal (Siberia, Russia) Diversity harpacticoids Lake Baikal endemics morphological species predicted species richness <i>Bryocamptus</i> <i>Baikalomoraria</i> |
| title | The First Data on Harpacticoid Copepod Diversity of the Deep-Water Zone of Lake Baikal (Siberia, Russia) |
| title_full | The First Data on Harpacticoid Copepod Diversity of the Deep-Water Zone of Lake Baikal (Siberia, Russia) |
| title_fullStr | The First Data on Harpacticoid Copepod Diversity of the Deep-Water Zone of Lake Baikal (Siberia, Russia) |
| title_full_unstemmed | The First Data on Harpacticoid Copepod Diversity of the Deep-Water Zone of Lake Baikal (Siberia, Russia) |
| title_short | The First Data on Harpacticoid Copepod Diversity of the Deep-Water Zone of Lake Baikal (Siberia, Russia) |
| title_sort | first data on harpacticoid copepod diversity of the deep water zone of lake baikal siberia russia |
| topic | harpacticoids Lake Baikal endemics morphological species predicted species richness <i>Bryocamptus</i> <i>Baikalomoraria</i> |
| url | https://www.mdpi.com/1424-2818/15/1/94 |
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